Masterdrive flexible jaw coupling. For use with 2 HP or less, rotating equipment. 7/16" bored to size. Interchanges with Lovejoy, Martin, T.B. Woods and others. Jaw couplings are sold individually and require 3 parts for the complete assembly. Order the appropriate coupling halves separately along with spider insert L075N for Buna-N or L075H for Hytrel. Coupling part number L075x7/16".